Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nhan luc » nang luc
ly nang » ky nang, ly vang, ly quang
ly hang » ly quang
va nhan » van nhan, ca nhan, va phan
luc va » duc va, tuc va, loc va
va dan » ca dan, va dao, va dau
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ly nang) or (ly hang)) xa hoi. lieu va nhan luc va dan vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly hang)) xa hoi. lieu va nhan luc va dan vi cua tu.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) or (ly hang)) xa hoi. lieu va nhan luc va dan vi cua tu*.